Lodam Optical Level Controlling Devices. Technical manual. Version 3.0 OLC-D1, OLC-K1

Transcription

1 Lodam Optical Level Controlling Devices Technical manual Version 3.0 OLC-D1, OLC-

2 Contents 1. Read this first Reading instructions User manual Safety General Definitions Functions Level monitoring Oil level monitoring Level monitoring in vessels Red LED status light Examples of application use Oil level monitoring on a compressor direct start Oil level monitoring on a compressor part-winding Legend for the schematic diagrams Connections Technical data Drawings OLC-D OLC Standards The product is designed according to the following standards The product is tested according to the following standards Troulbe shooting Check the LED on the OLC Index Notes Page 2

3 Technical manual OLC-D1, OLC- Page 3

4 1. Read this first The contents of this manual are subject to change without notice. Lodam electronics holds the copyright to this user s manual. The user shall follow any instructions given in this user manual entirely and not only partly. Any non-following of this user manual result in exclusion of all warranties, guarantees, and liabilities. Copyright 2014 by Lodam electronics a/s. All Rights Reserved. Disposing of the parts of the controller: INFORMATION FOR USERS ON THE CORRECT HANDLING OF WASTE ELECTRI- CAL AND ELECTRONIC EQUIPMENT (WEEE) In reference to European Union directive 2002/96/ EC issued on 27 January 2003 and the related national legislation, please note that: 1. WEEE cannot be disposed of as municipal waste and such waste must be collected and disposed of separately; 2. The public or private waste collection systems defined by local legislation must be used. In addition, the equipment can be returned to the distributor at the end of its working life when buying new equipment; 3. The equipment may contain hazardous substances: the improper use or incorrect disposal of such may have negative effects on human health and on the environment; 4. The symbol (crossed-out wheeled bin) shown on the product or on the packaging and on the instruction sheet indicates that the equipment has been introduced onto the market after 13 August 2005 and that it must be disposed of separately; 5. In the event of illegal disposal of electrical and electronic waste, the penalties are specified by local waste disposal legislation Reading instructions The following symbols are used to draw the reader s attention to different warning levels. Important information. Danger!! General danger. Danger of electrical current or voltage User manual Before installation the user should be thoroughly familiarized with this user manual, especially with purposes, installation and operation. Special care should be taken when installing and connecting external equipment (high voltage etc.) and handling the modules correctly according to protection against ESD. Installation of the OLC-D1/OLC- must be performed by authorized personnel only. All valid national legislations regarding electrical installations must be observed. All warranties are excluded in case installation is performed by unauthorized personnel or in case the OLC-D1/ OLC- has not been correctly installed Safety The OLC-D1/OLC- is a protection device and not a safety component according to the Machinery Directive and cannot be used in medical or life support equipment. Before plant commissioning the service technician shall ensure that personal safety requirements are met in conformity with the Machinery Directive on the basis of safety estimations. Electrical plant failures are to be immediately solved, even though no immediate danger exists; the OLC-D1/OLC- must be without power. Page 4

5 Technical manual OLC-D1, OLC- 2. General 3. Definitions The OLC-D1 and OLC- are Optical Level Controlling devices. The OLC- is for monitoring oil level in compressors while the OLD-D1 is for controlling levels in vessels. The relay in OLC- is used in the safety chain for the compressor and will open and lock-out in case of a failure. Product range Definitions ESD Electro Static Discharge HW Hardware/electronics OLC Optical Level Controller OLC-D1 is meant for keeping a specified level in a vessel by turning the relay on and off. NC NO Normally Closed (relay) Normally Open (relay) Page 5

6 4. Functions The OLC series consists of the two models, OLC-D1 and OLC-. They have different monitoring functions which are listed in the following. If the oil level is too low or there is a failure, the relay will be opened and the LED will signal the failure. LED Off: Oil level good, no failures LED On: Oil level low LED flashing: OLC not correctly mounted, or Supply voltage too low, or Internal failure 4.1. Level monitoring The OLC series consists of a screw-in prism unit and an optical level detection device. The prism unit is installed in the compressors oil chamber or in the vessel. The level detection device can be replaced without opening to the pressurized part of the compressor or vessel. Detection of the level is via infrared light. There is a built-in monitoring system for correct installation Oil level monitoring The OLC- is used for contactless oil level monitoring in compressors in order to safeguard sufficient lubrication of the internal mechanics. As the refrigerant can be absorbed by oil, fluctuation of the oil level in the compressor is common in refrigeration systems and thereby oil levels need to be monitored. OLC- is for compressor use and locks out if oil level is not sufficient after 90 seconds of compressor operation Level monitoring in vessels The OLC-D1 is meant for level monitoring in vessels and does not have the operation recognition input needed for compressor operation. The OLC-D1 releases the relay if the level is too low and activates the relay if the level is valid. There is a 5 seconds time delay between switching the relay Red LED status light At start-up, the OLC will flash shortly with the LED. After approx. 3 seconds the relay will be activated. For OLC-D1 the level monitoring starts immediately; for the OLC- monitoring starts when the D1 signal is applied and after the 90 seconds delay time the level is evaluated. Page 6

7 Technical manual OLC-D1, OLC- 5. Examples of application use 5.1. Oil level monitoring on a compressor direct start L1 L2 L3 N PE F1 1 0 Q1 11 F3 4A F2 0 1 S1 L 11 B1 B2 1 2 SE-B1/ SE-B2 SE-B3 / SE-B4 N F13 F M1 M3 R Grey Brown Violet D1 OLC-D1 / OLC- NO N F5 P> R7, option H1 Please see details regarding connection inside the terminal box F4 C NC F6 P< K2T 12 H2 F12 K2T R8 B1 3/3/3/11 12/13 4A Only OLC- Blue 0 1 S2 (Reset) L Pink Orange Page 7

8 5.2. Oil level monitoring on a compressor part-winding 19 F12 4A Option R K2 14 ϑ B2 Option L1 L2 L3 N PE F1 1 0 Q1 F2 F13 M1 1W1 1V1 1U1 M3 Y2 Y3 K2T R1..6 F3 4A L B1 B2 SE-B1 / SE-B2 / SE-B3 / SE-B4 N R7, option 300 sec K2 14 Option K2 14 F14 2W1 0 1 S1 S3 (Reset) S2 (Reset) H1 H2 T 3/3/3/12/ 15/16/ 18/19 2V1 2U1 Please see details regarding connection inside the terminal box T 11 K2 5/5/5/17 15 Y1 Only OLC- Grey Brown Violet C L D1 OLC-D1 / OLC- F4 NC NO N Blue Pink F13 Orange 3 F14 5 P> F5 P< F6 K2T 18 ϑ B1 max 0.5 sec 14 Page 8

9 Technical manual OLC-D1, OLC Legend for the schematic diagrams Legend B1 B2 F1 F2 F3 F4 F5 F6 F12 F13/F14 H1 H2 /K2 T/K2T M1 Q1 R1..3/R1..R6 R7 R8 S1/S2/S3 Y1 Y2 Y3 Control unit Control unit of capacity regulation (option) Main fuse Compressor fuse Control circuit fuse Oil level switch High pressure cut-out Low pressure cut-out Fuse of crank case heater Thermal overload motor PW1 / PW2 Signal light Compressor over temperature fault Signal light Oil supply fault Motor contactors PW1 / PW2 Time relays part winding / pause time Compressor Main switch PTC sensors in motor windings PTC sensor in cylinder head/discharge gas temperature sensor (option) Crank case heater (option) Control switch Solenoid valve start unloading (option) Solenoid valve liquid line Solenoid valve capacity regulation (option) 5.4. Connections View colour Brown Blue Grey Orange Pink Violet (only OLC-) Function L; Phase N; Neutral C; Common signal NO; Normal open NC; Normal closed D1; Compressor running Page 9

10 6. Technical data Description OLC-D1 OLC- Supply voltage 115 VAC; ±%, 50/60 Hz, 3VA / 230 VAC; ±%, 50/60 Hz, 3VA / 24 VAC/VDC, ±%, 50/60 Hz, 3VA 115 VAC; ±%, 50/60 Hz, 3VA / 230 VAC; ±%, 50/60 Hz, 3VA Max media temperature +120 C +0 C Lock-out Failure Failure Low oil level Wires in cable 5 6 Compressor-start signal input No Yes; violet wire Permitted ambient temperature Relative humidity Relay Fuse required Enclosure class Mounting of the detection circuit Reset of lock-out state Operation: -30 C +60 C Storage: -30 C +80 C Max. 95%RH non-condensing. Circuit board is coated Switch voltage 240 VAC, min 24 VAC Continuous current max 2.5A, min 20mA Switching capacity 300 VA, C300 (pilot type use according to UL508) Max 4A, fast-blow Housing IP54; cable outlet pointing downwards Screw mounted, M24 Max. tightening torque: Nm by hand only Interrupt supply power for min. 5 seconds Cable length 2050 ±50 mm 950 ±50 mm Weight 252 g 152 g Dimensions UL file number 55.5 mm (w) x 87.0 mm (d) x 57.5 mm (h) E Page

11 Technical manual OLC-D1, OLC- 7. Drawings 7.1. OLC-D1 83,0 to 87,0 (5) 83,0 ±1,0 (6) 55,5 1,0 (7) 57,5 ±2,0 (3) 39,0 ±1,0 (4) LED Ø29 Screw on Cap M24x1 Internal thread (8) (2) 75,0 ±5,0 (1) Page 11

12 7.2. OLC- 83,0 to 87,0 (5) 83,0 ±1,0 (6) 55,5 1,0 (7) 57,5 ±2,0 (3) 39,0 ±1,0 (4) LED Ø29 Screw on Cap M24x1 Internal thread (8) (2) 75 5 (1) Page 12

13 Technical manual OLC-D1, OLC- 8. Standards 8.1. The product is designed according to the following standards 2002/95/EC RoHs compliance 2006/95/EC Low Voltage Directive (LVD) 2004/8/EC Electromagnetic Compatibility (EMC) 6-1 Safety requirement for electrical equipment for measurement and control x Generic EMC 8.2. The product is tested according to the following standards EN 6-1 Safety requirement for electrical equipment for measurement and control EN (EMC, Immunity for residential, commercial and light-industrial environments) 9. Troulbe shooting Check if there is power to the unit according to specification. If the power is ok, Turn off the power for 5 seconds and see if the relay is energized after power on again. If not, turn off all the power to avoid risk of injury! 9.1. Check the LED on the OLC ED Off: Oil level good, no failures LED On: Oil level low there could be a leak or the oil is somewhere else in the cooling system and unavailable for the compressor LED is flashing: 1) OLC is not correctly mounted check that the device is mounted correctly in the prism and the turn-ring is tightened properly. If the LED flashes during start-up there may be foreign light entering the prism from outside 2) The supply voltage might be too low. Check voltage levels 3) The device has an internal fault and needs replacement EN (EMC, Emission standard for residential, commercial and light-industrial environments) UL UL file number E CE marked Page 13

14 . Index A Application use 7 C Connections 9 D Definitions 5 Drawings 11 F Functions 6 L Legend 9 S Safety 4 Standards 13 T Technical data Troulbe shooting 13 Page 14

15 Technical manual OLC-D1, OLC- 11. Notes Page 15

16 Innovative and energy saving climate control When it comes to climate control Lodam is one of the most experienced you can turn to. For more than four decades we have developed, produced and implemented electronic solutions dedicated to optimising applications like: Compressors Condensing units Heat pumps Air conditioning Refrigerated truck and trailer Reefer containers We know the importance of reliable, energy-efficient operation and constantly push technological boundaries to bring you the most innovative and forward-thinking solutions. As part of the BITZER Group we are backed by one of the world s leading players in the refrigeration and air conditioning industry. This alliance provides us with extensive network and application knowhow and allows us to stay at the forefront of climate control innovation. And to help ensure comfortable surroundings for humans and reliable protection of valuable goods anywhere in the world Contents are subject to change without notice. Lodam electronics a/s Kærvej Sønderborg Denmark Tel Fax lodam@lodam.com For more information visit: